# WeldCalc Pro vs Drw Tools

The clearest difference is in-app purchases: Drw Tools at none against WeldCalc Pro's 3. Drw Tools also leads on update cadence (every 3 days vs every 3 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. WeldCalc Pro sells 3 in-app purchases, starting at $1.99 per 7 days. Drw Tools asks for nothing beyond the download.

WeldCalc Pro ships an update every 3 weeks, Drw Tools every 3 days. Both last shipped on October 31, 2026.

## The numbers

| Metric | WeldCalc Pro | Drw Tools |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 3 days** |
| Size | 21 MB | 21 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ersel Tarhan](https://appshunter.io/developer/1093545232) | [Dotech di Soddu Simone](https://appshunter.io/developer/6803601931) |

## What reviewers say

### WeldCalc Pro

[App page](https://appshunter.io/ios/app/weldcalc-pro-welding-calc/id6759536437)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $1.99 | per 7 days |
| Annual Premium | $19.99 | per year |
| WeldCalc Pro Lifetime | $39.99 | one-time |


### Drw Tools

[App page](https://appshunter.io/ios/app/drw-tools/id6809351778)

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is WeldCalc Pro free?

WeldCalc Pro is free to download, with in-app purchases available.

### Is Drw Tools free?

Drw Tools is free to download, with no in-app purchases.

### Do WeldCalc Pro or Drw Tools have ads?

Neither WeldCalc Pro nor Drw Tools shows ads.

### Which is updated more often, WeldCalc Pro or Drw Tools?

WeldCalc Pro ships an update every 3 weeks, and Drw Tools every 3 days. Most recently, WeldCalc Pro was updated on October 31, 2026 and Drw Tools on October 31, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*